I have a Rebel T5i. I've installed the latest version of the webcam utility. I have a MAC. I've tried both Zoom and Google Meet and the results are the same. My video is displayed in 4:3 aspect ration vs. wide screen 19:6. On the sides of the video are 2 black bars. Any help in fixing this is greatly appreciated. 

I've followed the getting started guide and have my camera's movie recording size set to 1920 x 1080 (30 fps).